All the answers to your questions can be found here!
Is the inventory quantity considered as the product's quantity or the variant's quantity ?
The app enables merchants to configure whether to show product's quantity or the variants' quantity.
How can the widget be hidden when products are sold out?
It is very simple and easy to hide stock counter widget when the products are sold out. Simply set the Min quantity value to 1 or more under "Appearance rule" section of the widget.
Is there any option to create multiple widgets ?
Yes, you can create multiple widgets but only 1 widget will be displayed on the products page. Priority of the widget is decided based on the position of the widget in the app (Top to bottom) .
